All digital SLR cameras will eventually need to have the sensor cleaned.  If you never take the lens off the camera, dust still works its way onto the sensor unit.  No matter how hard you protect your camera from dust, it is an issue even with the professional cameras.  I can clean your camera’s sensor and I can usually do it the same day.  If you ship your camera to me I can either clean your camera and sensor the same day or by the next day and get it back to you promptly.